Apikey

What

Api key is for projects, authentication for users. https://cloud.google.com/endpoints/docs/openapi/when-why-api-key (opens in a new tab)

It provides project authorization

• Identity (identify the application that is making the call)
• Authorization (identify the permission of the application that is making the call)

Can

• block anonymous traffic
• rate limiting
• identify call patterns
• filter logs by api keys

Can't

• authenticating users
• secure authorization